Postmaster Finder
Postal History
Research Sources
Postmaster Finder
Post Offices by County
LAKE COUNTY,
MONTANA
ZIP Code
Post Office
Date Established
Date Discontinued
59821
ARLEE
59910
BIG ARM
02/27/1911
59824
CHARLO
59914
DAYTON
59915
ELMO
59855
PABLO
59860
POLSON
01/22/1898
59929
PROCTOR
12/31/1994
59931
ROLLINS
01/22/1904
01/16/1993
59864
RONAN
59865
SAINT IGNATIUS
02/20/1872
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